Gloop FREE vs ChatterPix
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gloop FREE
Explore a unique interactive simulation of a viscous, glowing substance. Manipulate its properties by stirring or treating it gently to create dynamic visual effects and even shape it. Supports real-time warping of photos, images, and video on compatible devices.
- Interactive molecular simulation
- Dynamic glowing effects
- Viscosity and solidification control
- Photo and image warping
- Real-time video warping
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"Gloop" sits somewhere in that improbable space between an interactive lava lamp, foam resting on water and alien clouds lit by the setting sun(s). Whatever it is, as you stir this bizarre mix thousands of virtual molecules collide with each other, sticking and slipping. This generates heat causing the gloop to glow and become less viscous. If you treat the gloop more gently it cools and solidifies allowing you to give it form. Gloop FREE now features warping of photos, images and real time video on iPhone 3GS+, iPod 3rd Gen+ and iPad+. Photos and real time video require a device with a camera. ------------ Also by RunSwimFly - "Germs" and "Germs FREE" - the liquid physics engine of "Gloop" employed in a game of microbial conquest.
ChatterPix
An app that allows users to animate still photos by adding a mouth and voice. Create fun greetings, messages, or cards with customizable stickers, frames, and filters. It's a free tool for creative expression.
- Animate photos with sound
- Add voice recordings
- 22 stickers
- 12 frames
- 11 photo filters
- Create greetings and messages
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Create ChatterPix with friends and family as silly greetings, playful messages, or creative cards. And best of all, it’s FREE! CATEGORY: Creative Expression TOOLS: 22 stickers, 12 frames and 11 photo filters ABOUT DUCK DUCK MOOSE (A subsidiary of Khan Academy) Duck Duck Moose, an award-winning creator of educational mobile apps for families, is a passionate team of engineers, artists, designers, and educators. Founded in 2008, the company has created 21 top-selling titles and has received 21 Parents’ Choice Awards, 18 Children’s Technology Review Awards, 12 Tech with Kids’ Best Pick App Awards, and a KAPi award for “Best Children’s App” at the International Consumer Electronics Show. Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. Duck Duck Moose is now part of the Khan Academy family. Like all Khan Academy offerings, all Duck Duck Moose apps are now 100% free, without ads or subscriptions. For kids ages 2-6, don't miss Khan Academy Kids, our new early learning app to help young children with reading, writing, math and social-emotional development! We’d love to hear from you! Visit us at www.duckduckmoose.com or drop us a line at support@duckduckmoose.com.
Screenshots
Verdict
The clearest difference is rating: ChatterPix at 4.4 against Gloop FREE's 4.1. ChatterPix also leads on ratings volume (1.7K vs 57) and update cadence (every 2 months vs every 5 months). Gloop FREE's advantage is iOS requirement (4.3 vs 9.0). On price, review sentiment, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ChatterPix holds the better App Store score, 4.4 against 4.1. That said, the two scores are not equally well evidenced: ChatterPix has 1.7K ratings behind it against 57, so its average is the more settled of the two. Written reviews complicate that: 83% of Gloop FREE's written reviews are positive against 78% of ChatterPix's, so the app with the better star average is not the one people write more warmly about.
Gloop FREE ships an update every 5 months, ChatterPix every 2 months. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.
| Parameter | Gloop FREE | ChatterPix |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (57 ratings) | 4.4 (1.7K ratings) — better |
| Positive reviews | 82.9% of reviews — better | 78.1% of reviews |
| Number of ratings | 57 | 1.7K — better |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 4.3 — better | 9.0 |
| Further details — not scored | ||
| Size | 0 MB | 69 MB |
| Age rating | 4+ | 12+ |
| Developer | RunSwimFly | Duck Duck Moose LLC |
Customer experience
Gloop FREE
ChatterPix
User reviews
Gloop FREE
From 57 App Store ratingsWhat we love
- 😊 Highly addictive and entertaining
- 🎨 Mesmerizing fluid physics simulation
- 💰 Free with no ads
- 🎮 Relaxing and stress-relieving
- 🎯 Simple yet engaging gameplay
Room to improve
- 🐛 Crashes after extended play sessions
- 📉 Graphics quality is blurry
- 🔧 Difficult to manipulate without tearing
- ⚠️ Compatibility issues with newer devices
- 🔊 No sound effects
ChatterPix
From 1.7K App Store ratingsWhat we love
- ⭐️ Lots of fun
- 👍 Easy and intuitive to use
- 🤩 Engaging and creative
- 🎉 Great for school/classroom use
- 🤗 Fun for all ages
Room to improve
- 🐛 Occasional crashes or glitches
- 🔇 Audio/recording issues
- 📏 Difficulty with mouth placement/alignment
- 🔍 Limited customization options
- ⏱️ Short recording time limit
Bugs and requests
Gloop FREE
Reported bugs
9 issues- App unavailable on modern iOS devices
- Crashes on iPad after 5+ minutes of play
- Accelerometer malfunction on iPhone 4
- Blurry graphics during gameplay
- Goop turns yellow and becomes uncontrollable when touched
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- Goop dissipates unexpectedly
- Landscape mode doesn't work properly
- Full version not available for iPod Touch
- Color changes to blue after brief time in lite version
Requested features
13 requests- Gravity and tilt controls
- Sound effects for interactions
- Thicker, more viscous goop consistency
- More goop quantity
- Additional shapes and particle types
Show 8 moreShow fewer
- Game levels or progression system
- Multiplayer functionality
- HD graphics upgrade
- Ability to insert pictures
- Background color customization
- Landscape screen support
- Firework sounds on explosions
- Smaller globs absorption mechanic
ChatterPix
Reported bugs
3 issues- Camera function not working for some users
- App signing out/resetting after use
- Frequent crashes or freezing
Requested features
5 requests- Ability to remove watermark/logo
- More sticker/accessory options
- Voice changing/filtering effects
- Longer recording time
- Ability to use existing photos from library
In-app purchases
Gloop FREE
No in-app purchases
ChatterPix
No in-app purchases
